marine corps futenma air station within the prefecture to a less populated area in the city of nago. >>> u.s. researchers say authorities in north korea may be ready to conduct another underground nuclear test. they have detected more activity at a facility in the country's northeast. a team from johns hopkins university released a report showing the latest satellite photos. one of the pictures was taken on february 13th, a day after the test. the other was taken two days after that. the researchers say the first photo shows no movement around the site. they speculate that personnel stayed away until they could confirm radiation levels were safe. the second picture shows an entrance to a tunnel covered with nets along with some people and vehicles. the researchers believe workers were removing data and equipment from the site and they say they noticed a new road near another tunnel. >>> authorities in pyongyang have given a hero's welcome to those who carried out the test. officials from the ruling workers party invited engineers to the capital. state-run television show "the big wel